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140189049 = 34721113219
BaseRepresentation
bin10000101101100…
…01110101111001
3100202210100020000
420112301311321
5241342022144
621524423213
73321405300
oct1026616571
9322710200
10140189049
1172151120
123ab47b09
1323075400
1414893437
15c492769
hex85b1d79

140189049 has 180 divisors, whose sum is σ = 302916240. Its totient is φ = 63685440.

The previous prime is 140189017. The next prime is 140189053. The reversal of 140189049 is 940981041.

It is not a de Polignac number, because 140189049 - 25 = 140189017 is a prime.

It is not an unprimeable number, because it can be changed into a prime (140189549) by changing a digit.

It is a polite number, since it can be written in 179 ways as a sum of consecutive naturals, for example, 7378362 + ... + 7378380.

It is an arithmetic number, because the mean of its divisors is an integer number (1682868).

Almost surely, 2140189049 is an apocalyptic number.

140189049 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

140189049 is an abundant number, since it is smaller than the sum of its proper divisors (162727191).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140189049 is a wasteful number, since it uses less digits than its factorization.

140189049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82 (or 53 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 36.

The square root of 140189049 is about 11840.1456494420. The cubic root of 140189049 is about 519.4830278751.

The spelling of 140189049 in words is "one hundred forty million, one hundred eighty-nine thousand, forty-nine".